Document Type : Scientific Note
Authors
1. Department of Physics and Energy Engineering, Amirkabir University of Technology, No. 350, Hafez Ave, Valiasr Square, Tehran, Iran 1591634311.
Abstract
We are studying the experimental behavior of non-refractory and refractory wires in the 1 kJ pulsed electrical system. This article discusses the experimental study of the behavior of non-refractory (copper-nickel) and refractory (tungsten) explosive wires in pulsed electric discharge systems. The energy of the system is 1 kJ, the length of the wire is 4 cm, and its diameter is 200 μm. In order to study the behavior of the wires, the electrical parameters of current and voltage of electric discharge and shock wave have been investigated. In non-refractory wires, the current is established periodically and has two peaks. In refractory wires, two current peaks are formed at a longer time interval, which shows that the energy level of 1 kJ was not enough to change the state and create plasma in this sample of wires. Finally, with the current test conditions and comparison of the experimental results, it can be seen that the non-refractory wires create a more substantial shock wave than the refractory samples. This pressure is 8.5 MPa in non-refractory wire (copper-nickel) and 6 MPa in refractory wire (tungsten). Also, we compared the electrical discharge current for three copper-nickel wires with diameters of 100, 200, and 300 micrometers and experimentally observed that the electrical discharge current is higher in the wire with a thicker diameter.
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Main Subjects
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